| # Copyright 2015, Google Inc. |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| require 'grpc' |
| |
| include GRPC::Core::StatusCodes |
| |
| describe GRPC::ActiveCall do |
| ActiveCall = GRPC::ActiveCall |
| Call = GRPC::Core::Call |
| CompletionType = GRPC::Core::CompletionType |
| |
| before(:each) do |
| @pass_through = proc { |x| x } |
| @server_tag = Object.new |
| @server_done_tag = Object.new |
| @tag = Object.new |
| |
| @client_queue = GRPC::Core::CompletionQueue.new |
| @server_queue = GRPC::Core::CompletionQueue.new |
| host = '0.0.0.0:0' |
| @server = GRPC::Core::Server.new(@server_queue, nil) |
| server_port = @server.add_http2_port(host) |
| @server.start |
| @ch = GRPC::Core::Channel.new("localhost:#{server_port}", nil) |
| end |
| |
| after(:each) do |
| @server.close |
| end |
| |
| describe 'restricted view methods' do |
| before(:each) do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| @client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| end |
| |
| describe '#multi_req_view' do |
| xit 'exposes a fixed subset of the ActiveCall methods' do |
| want = %w(cancelled, deadline, each_remote_read, metadata, shutdown) |
| v = @client_call.multi_req_view |
| want.each do |w| |
| expect(v.methods.include?(w)) |
| end |
| end |
| end |
| |
| describe '#single_req_view' do |
| xit 'exposes a fixed subset of the ActiveCall methods' do |
| want = %w(cancelled, deadline, metadata, shutdown) |
| v = @client_call.single_req_view |
| want.each do |w| |
| expect(v.methods.include?(w)) |
| end |
| end |
| end |
| end |
| |
| describe '#remote_send' do |
| it 'allows a client to send a payload to the server' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| @client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is a string' |
| @client_call.remote_send(msg) |
| |
| # check that server rpc new was received |
| @server.request_call(@server_tag) |
| ev = @server_queue.next(deadline) |
| expect(ev.type).to be(CompletionType::SERVER_RPC_NEW) |
| expect(ev.call).to be_a(Call) |
| expect(ev.tag).to be(@server_tag) |
| |
| # Accept the call, and verify that the server reads the response ok. |
| ev.call.server_accept(@client_queue, @server_tag) |
| ev.call.server_end_initial_metadata |
| server_call = ActiveCall.new(ev.call, @client_queue, @pass_through, |
| @pass_through, deadline) |
| expect(server_call.remote_read).to eq(msg) |
| end |
| |
| it 'marshals the payload using the marshal func' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| marshal = proc { |x| 'marshalled:' + x } |
| client_call = ActiveCall.new(call, @client_queue, marshal, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| |
| # confirm that the message was marshalled |
| @server.request_call(@server_tag) |
| ev = @server_queue.next(deadline) |
| ev.call.server_accept(@client_queue, @server_tag) |
| ev.call.server_end_initial_metadata |
| server_call = ActiveCall.new(ev.call, @client_queue, @pass_through, |
| @pass_through, deadline) |
| expect(server_call.remote_read).to eq('marshalled:' + msg) |
| end |
| end |
| |
| describe '#client_invoke' do |
| it 'sends keywords as metadata to the server when the are present' do |
| call = make_test_call |
| ActiveCall.client_invoke(call, @client_queue, deadline, |
| k1: 'v1', k2: 'v2') |
| @server.request_call(@server_tag) |
| ev = @server_queue.next(deadline) |
| expect(ev).to_not be_nil |
| expect(ev.result.metadata['k1']).to eq('v1') |
| expect(ev.result.metadata['k2']).to eq('v2') |
| end |
| end |
| |
| describe '#remote_read' do |
| it 'reads the response sent by a server' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| server_call = expect_server_to_receive(msg) |
| server_call.remote_send('server_response') |
| expect(client_call.remote_read).to eq('server_response') |
| end |
| |
| it 'saves no metadata when the server adds no metadata' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| server_call = expect_server_to_receive(msg) |
| server_call.remote_send('ignore me') |
| expect(client_call.metadata).to be_nil |
| client_call.remote_read |
| expect(client_call.metadata).to eq({}) |
| end |
| |
| it 'saves metadata add by the server' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| server_call = expect_server_to_receive(msg, k1: 'v1', k2: 'v2') |
| server_call.remote_send('ignore me') |
| expect(client_call.metadata).to be_nil |
| client_call.remote_read |
| expected = { 'k1' => 'v1', 'k2' => 'v2' } |
| expect(client_call.metadata).to eq(expected) |
| end |
| |
| it 'get a nil msg before a status when an OK status is sent' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| client_call.writes_done(false) |
| server_call = expect_server_to_receive(msg) |
| server_call.remote_send('server_response') |
| server_call.send_status(OK, 'OK') |
| expect(client_call.remote_read).to eq('server_response') |
| res = client_call.remote_read |
| expect(res).to be_nil |
| end |
| |
| it 'unmarshals the response using the unmarshal func' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| unmarshal = proc { |x| 'unmarshalled:' + x } |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| unmarshal, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| |
| # confirm the client receives the unmarshalled message |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| server_call = expect_server_to_receive(msg) |
| server_call.remote_send('server_response') |
| expect(client_call.remote_read).to eq('unmarshalled:server_response') |
| end |
| end |
| |
| describe '#each_remote_read' do |
| it 'creates an Enumerator' do |
| call = make_test_call |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline) |
| expect(client_call.each_remote_read).to be_a(Enumerator) |
| end |
| |
| it 'the returns an enumerator that can read n responses' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is 4a string' |
| reply = 'server_response' |
| client_call.remote_send(msg) |
| server_call = expect_server_to_receive(msg) |
| e = client_call.each_remote_read |
| n = 3 # arbitrary value > 1 |
| n.times do |
| server_call.remote_send(reply) |
| expect(e.next).to eq(reply) |
| end |
| end |
| |
| it 'the returns an enumerator that stops after an OK Status' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| read_metadata_tag: meta_tag, |
| finished_tag: done_tag) |
| msg = 'message is a string' |
| reply = 'server_response' |
| client_call.remote_send(msg) |
| client_call.writes_done(false) |
| server_call = expect_server_to_receive(msg) |
| e = client_call.each_remote_read |
| n = 3 # arbitrary value > 1 |
| n.times do |
| server_call.remote_send(reply) |
| expect(e.next).to eq(reply) |
| end |
| server_call.send_status(OK, 'OK') |
| expect { e.next }.to raise_error(StopIteration) |
| end |
| end |
| |
| describe '#writes_done' do |
| it 'finishes ok if the server sends a status response' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: done_tag, |
| read_metadata_tag: meta_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| expect { client_call.writes_done(false) }.to_not raise_error |
| server_call = expect_server_to_receive(msg) |
| server_call.remote_send('server_response') |
| expect(client_call.remote_read).to eq('server_response') |
| server_call.send_status(OK, 'status code is OK') |
| expect { client_call.finished }.to_not raise_error |
| end |
| |
| it 'finishes ok if the server sends an early status response' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| read_metadata_tag: meta_tag, |
| finished_tag: done_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| server_call = expect_server_to_receive(msg) |
| server_call.remote_send('server_response') |
| server_call.send_status(OK, 'status code is OK') |
| expect(client_call.remote_read).to eq('server_response') |
| expect { client_call.writes_done(false) }.to_not raise_error |
| expect { client_call.finished }.to_not raise_error |
| end |
| |
| it 'finishes ok if writes_done is true' do |
| call = make_test_call |
| done_tag, meta_tag = ActiveCall.client_invoke(call, @client_queue, |
| deadline) |
| client_call = ActiveCall.new(call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| read_metadata_tag: meta_tag, |
| finished_tag: done_tag) |
| msg = 'message is a string' |
| client_call.remote_send(msg) |
| server_call = expect_server_to_receive(msg) |
| server_call.remote_send('server_response') |
| server_call.send_status(OK, 'status code is OK') |
| expect(client_call.remote_read).to eq('server_response') |
| expect { client_call.writes_done(true) }.to_not raise_error |
| end |
| end |
| |
| def expect_server_to_receive(sent_text, **kw) |
| c = expect_server_to_be_invoked(**kw) |
| expect(c.remote_read).to eq(sent_text) |
| c |
| end |
| |
| def expect_server_to_be_invoked(**kw) |
| @server.request_call(@server_tag) |
| ev = @server_queue.next(deadline) |
| ev.call.add_metadata(kw) |
| ev.call.server_accept(@client_queue, @server_done_tag) |
| ev.call.server_end_initial_metadata |
| ActiveCall.new(ev.call, @client_queue, @pass_through, |
| @pass_through, deadline, |
| finished_tag: @server_done_tag) |
| end |
| |
| def make_test_call |
| @ch.create_call('dummy_method', 'dummy_host', deadline) |
| end |
| |
| def deadline |
| Time.now + 1 # in 1 second; arbitrary |
| end |
| end |